The trade that put Iginla in the playoff race ended his chances of matching Steve Yzerman’s record of 692 goals in a one-team career, which means that the active leader in that category is now Daniel Alfredsson, with 424 goals for the Ottawa Senators. That’s 10th all-time, behind Yzerman (Red Wings), Mario Lemieux (690, Penguins), Mike Bossy (573, Islanders), Maurice Richard (544, Canadiens), Stan Mikita (541, Blackhawks), Gilbert Perreault (512, Sabres), Jean Beliveau (507, Canadiens), Alex Delvecchio (456, Red Wings), and Dave Taylor (431, Kings). Chasing Alfredsson among active players are Patrick Marleau, who has scored 403 goals in a career spent entirely with the Sharks, and Vincent Lecavalier, with 380 for the Lightning. The best chances of catching Yzerman probably belong to Alex Ovechkin, currently at 359 goals with the Capitals at the age of 27, and 23-year-old Steven Stamkos, who has 204 goals in 361 games with the Lightning.

Iginla is no longer a one-team player, but he should hang on to his Calgary team records for a while. With Iginla’s 525 goals now set as the franchise benchmark, the closest member of the Flames to it is Curtis Glencross, who has scored 92 goals for Calgary since signing there as a free agent in 2008. Among players under the age of 30, the Flames’ active leader is defenseman Mark Giordano with 40 — at his current career scoring rate of 0.11 goals per game, Giordano would need to play until 2067 to catch Iginla.

More to the point, Iginla played 1,219 games with the Flames. Giordano is the club’s new active leader at 373. It is going to be a long time before there is a player synonymous with Calgary Flames hockey as No. 12.

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2. Redd zone

It was hardly a headline-grabbing trade, but the Bruins’ deal for Wade Redden, in which Boston sent a conditional seventh-round pick to the St. Louis Blues, brings up an interesting factoid: Among defensemen who have played 20 or more games this season, the veteran blueliner is tied for seventh in the NHL in Relative Corsi: the rate of even-strength shot attempts for and against his team while on ice compared to his teammates.

For one thing, Subban averages 22:54 of ice time per game, including 4:26 on the power play and 1:30 on the penalty kill. Redden averaged 14:59 a game in St. Louis, including 50 seconds on the power play and 12 seconds on the penalty kill. Then there’s the fact that Redden was particularly sheltered in St. Louis, starting only 28.7 percent of his shifts in the defensive zone, the second-lowest rate on the Blues behind Kris Russell's 26.4 percent. Subban, the highest-scoring defenseman in the league, has started 31.3 percent of his shifts in the defensive zone, second-most among Habs blueliners behind Raphael Diaz (33.9 percent rate).

This means two things. One is obvious—Subban is having a great season. The other is that, used properly, Redden is showing that he can still be effective, and can help a Bruins defense already tied with Ottawa for the fewest goals allowed in the NHL.

Joffrey Lupul did not practice on Friday after suffering an injury on Thursday night that Maple Leafs coach Randy Carlyle would not call a concussion. When Lupul got hurt in Toronto’s 5-3 loss to the Philadelphia Flyers, he had only played 1:40, registering an assist during what proved to be a too-brief night of work.

One player has registered a point this season in a game where he played less than Lupul this season. Last Wednesday, Tim Jackman of the Flames had an assist in 1:24 of ice time. Jackman also is the player who scored a goal in the least amount of ice time this season, scoring on his only shot of the game on Feb. 24 against the Coyotes, a game in which he played 3:05.

Limited playing time is nothing new for Jackman, who only averages 6:11 per game, and has racked up 48 penalty minutes. Having played 192 minutes this season, Jackman has averaged 0.25 penalty minutes per minute on the ice. That’s an impressive rate for what it is, but nothing compared to Harry Zolnierczyk, who had 36 penalty minutes in 52 minutes on ice (0.69 per) in his seven games with the Flyers before being traded to the Ducks.

Among players who have appeared in at least 10 games, the most efficient, if you will, collector of penalty minutes is the league’s leader, Colton Orr, with 134 penalty minutes compared to 215 minutes of playing time with the Maple Leafs. Orr “helped” his cause greatly on March 21, when he racked up 29 penalty minutes after playing only two seconds of hockey — a rate of 52,200 penalty minutes per 60 minutes of ice time.

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4. Off the block

One of the complaints about using blocked shots to measure defense is that a team with a lot of blocks tends to not have the puck very much. The Toronto Maple Leafs, for instance, lead the NHL with 621 blocked shots this season, but also is the second-worst possession team in the league.

So, how about blocked shots as a percentage of opponents’ shot attempts? The Philadelphia Flyers allow 54.9 shot attempts per game and block 16.3 — their rate of 29.7 percent opponent shot attempts blocked is tops in the league. Considering that the Flyers have allowed the sixth-most goals in the NHL, such a figure would suggest a lack of correlation between blocking shots and quality of defense, regardless of issues surrounding the quality of goaltending in Philadelphia.

There still is value in blocking shots, but it should probably only be part of a team’s strategy. Ron Hainsey leads the league with 99, and most frequently plays alongside Zach Bogosian, an offensive-minded defenseman having something of an off year. Brooks Orpik, second in the NHL with 98, has played mostly with Paul Martin, who was great before hurting his wrist and likely missing the rest of the regular season. When Orpik and Martin are on the ice together at 5-on-5, the Penguins have outscored their opponents by more than a 3-2 ratio, while the Hainsey-Bogosian pair has been outscored by slightly less than a 3-2 ratio.

This is not just a case of the Penguins being better than the Jets. Pittsburgh’s ratio of 5-on-5 goals is 3.9 percentage points better with the Orpik-Martin pair than the overall team rate, while Winnipeg’s ratio is 1.2 percentage points worse than normal with Hainsey-Bogosian on the ice.

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5. Big Ben

Of the 14 teams out of playoff position, only one has a positive goal differential for the season: the Tampa Bay Lightning, who have outscored opponents 117-106 this season, but have a league-worst 4-10-2 record in one-goal games.

After a 45-save shutout in his Lightning debut after a deadline trade from Ottawa, Ben Bishop has a .930 save percentage this season in 14 games. The rest of Tampa Bay’s goalies have a combined .902 save percentage.

With the Lightning allowing an average of 29.6 shots on goal per game, the difference between a .902 save percentage and a .930 save percentage is 0.84 goals per game. Tampa Bay is four points off the Southeast Division lead, with a game in hand on the Washington Capitals. Even at Bishop’s career save percentage of .915, the Lightning should expect savings of 0.39 goals per game. That may be enough to get an edge in more close games down the stretch.

The problem for Tampa Bay is the schedule. Only four of the Lightning’s remaining 12 games are against teams currently out of playoff positions, and seven of the 12 are on the road, where the Bolts have won six games all season.